Networking and ITS Issues for PHENIX* Charles F. Maguire Department of Physics and Astronomy *Major thanks to ACCRE staff: Mat Binkley, Bobby Brown, Kevin Buterbaugh, Mary Dietrich, Carie Kennedy, Santiago de Ledesma, Kelley McCauley, Kevin McCord, and Alan Tacket http://www.accre.vanderbilt.edu/accre/ July 15, 2005 Networking and ITS

13 Countries; 62 Institutions; 550 Participants* *as of March 2005

The PHENIX Detector EM Calorimeter Beam-Beam Counter Time Expansion Chamber Muon Tracking Chambers Central Arms Muon ID Panels Pad Chambers Multiplicity/Vertex Detector North Muon Arm Drift Chambers South Muon Arm Time of Flight Panels Ring Imaging Cerenkov July 15, 2005 Networking and ITS

Vanderbilt Role in PHENIX Supervisor of 3 subsystems Pad Chambers New Time-of-Flight West Simulation Software Simulation Responsibility Generate huge amounts of simulated data to check real analyses Simulations done on ACCRE farm (5 TBytes in past 6 weeks) Results are transported over the Internet to BNL at 10 Mbytes/second ACCRE can generate simulations faster than we can ship them Now exploring new faster modes of transport, up to 60 MBytes/second Collaboration will request us to use gridFTP for this work (security for them) New Proposal to DOE Planned for the Fall Will import hundreds of TBytes of real data from BNL to ACCRE via gridFTP 100 TBytes at 60 MBytes/second takes 20 days Proved to work this past Spring for a connection from BNL to Japan Data will be reconstructed on ACCRE Reconstruction results (tens of TBytes) will be immediately shipped back to BNL The speed, reliability, and transparency of the network is the vital element July 15, 2005 Networking and ITS